The Casio Oceanus Super Chronograph is the world’s first solar chronograph watch that syncs with atomic clocks. Using a multi-band radio, the watch can check in with the US, UK, Germany and ...

Functionally, the new NASA watch — G-Shock’s fifth — is identical to other Solar Atomic 6900s. It has a world timer, a 1/100th-second chronograph, multiple alarms, a perpetual calendar, an ...